IDOCS : Production orders and order receipt

Hi

We have a extenal non-SAP warehouse system. When production order P123 has been created, i want to send this order to this external system via some message. As soon as the items on these production order get of the production line, i want to send a message to SAP and confirm or do a production order receipt on this Order 123.

I've setup the ALE RFC connection between these two systems.

I need to know how to do the followning.

1. How do i configure the system to send outbound Production order idocs to an external system.

2.How should i setup the SAP system to receive the inbound confirmation of this order.